This question has also tortured me for two years. It wasn't that serious at first. Then it got shorter and shorter. Sometimes I come out as soon as I touch it. At that time, I wanted to die. Lift your head in front of your daughter-in-law. I really felt inferior at that time. Later, my friend told me that one of them is more tolerant and easy to use with a spray. I didn't believe it then either. I tried dozens of methods, all in vain. I was stubborn, so I used it. I didn't expect anything at first, but I didn't expect it to be completely effective. I continued to use it later. Now that a few months have passed, I feel refreshed!